Unable to close my Telkom account

Last year on this platform I made a complaint about the difficulty I was experiencing closing my Telkom account. I had 2 phone numbers with Telkom and after my last complaint Telkom contacted me. They have since managed to move one number into their holding pool, they are refusing to move my other number. I keep being told I owe money even though my account was closed a year ago and received confirmation with reference numbers from Telkom. The billing department agreed with me that the reference numbers point to my account being closed last year and my outstanding balance was R0.00. 12 months later and another full day on the phone to sales, I can confidently say I now owe a substantial amount of money for a service I cancelled. I am writing this to warn current and any potential Telkom customers, YOU WILL NEVER BE ABLE TO CLOSE YOUR TELKOM ACCOUNT.